Transaction not yet indexed

21b6zydD965CsT7jY3xupfCrieYxjUUQRYNfdYHsamNzneWktXwVEwNWqt7tTKSyb53iFSwPCz5gCQLvTvr5jmPn

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.